There is a bond which has an annual coupon interest rate of

$6\mathrm{.}00\%$

The bond has a maturity of $($years$)$

It has a yield to maturity of

$6\mathrm{.}00\%$

Assume a typical par value for this corporate bond.

What is the Annual Duration of such a security?

Round your answer to three decimal points $($i$.$e$.,1\mathrm{.}234)$